Carbureter.



F. J. MAGEY.

GARBURBTBR.

APPLIOATION FILED 0012.30, 1912.

1,103,789 Patented Julyr 14,1914.

y #3 By M v AHORA/@V8 FRED 1". MACEY, 0F SAN DIEGO, CALTFRNIA.

CARJBURETER.

amarres,

Specification of Letters Patent.

hpplteatilon filed. october 30, 1912.

Patented Tully 1d, 1914i,

serial no. raaasa.

To all whom it may concern.'

Be it known that li, Fnsi) J. MACEY, a citizen of the United States, anda resident of San Diego, in the county of San Diego and State of California, have invented a new and Improved Carbureter, of which the followingA is a full, clear, and exact description.

My invention has for its object to providea carbureter with a body having an air intake tube, there being avset ofi valve seats in the air intake tube, below the normal level of the gasolene, and another set of valve .seats above the normal level of the gasolene, so that with a valve member provided it is possible to close the rst valve seats when the second valve seats are opened, and to close the secondvalve seats as the first valve seats are opened, for regulating the richness of the combustible mixture supplied uby the carbureter. The valve member may be operated to open Wider the valve 'seats above the gasolene and to partially close the valve seats below the gasolene level, to reduce the richness of the combustible mixture supplied by the carburetor, or, if desired, the valve member may be operated to open `wider the valve seats below the gasolene level, to partially close, or close altogether, the valve seats above the gasolene, so that a richer combustible mixture may be supplied.'

Still other objects of the invention will appear in the following complete specifica-- tion, in .which the preferred form of the invention is disclosed,

In the drawings similar characters of .reference indicate corresponding parts in all the views, in which I Figure 1 is a vertical section of theinvention; Fig. 2..is`a sectionalview on theline 22 of Fig. l; Fig. 3 is a sectional view on the line 3--3 of Fig. l; and Fig. a is a sectional view on the liney 4 4 of Fig. l.

fn a carbureter it is not only im ortant that means be provided for regulating the richness of the combustible mixture ,sup-y plied by the carburetor, but it is also important that the combustible mixture flow freely to the carbureter atall times, so that with a given suction the same quantity of combustible mixture will lowwithout reference to the adjustment of the `carbureter to regulate the richness of the mixture. My carburetor is peculiarly well adapted to satisfy this need., for when the valve seats in chamber 8 being in communication with the chamber 6 by means of a communication means 9. Disposed in the float feed chamber 8 there is a oat 10, which is secured tothe arm 11 of the lever 12, the other arm 13 'of this lever 12 being connected with a member llt of the valve 15, provided Ifor cooperating with the valve seat 16'for closing the gaso. lene or hydro-.carbon inlet 17. There is a plug hole 18 in the projection 7, above the valve rseat 16, the plug openin threaded for receiving the threa 19 on the plug 2O provided for closing this opening. Not only is there a communicating means 9 between the bottom of the Heat feed chann-` ber 8 and the bottom of thel chamber 6, but there is also a second communicatingl meansl 21 between the float feed chamber 8 and the 6, this second communicatingv chamber means 21 being disposed at the top. of the float feed chamberS, and above the normal position of the Heat 10. rThis second communicating -means 21 is provided for equalf. izing the pressure in the float feed` chamber 8, and the chamber 6 in the body to make certain that the level of the gasolene or hydro-carbon inthe chamber 6 will remain substantially the same as the hydro-carbon in the float feed chamber 8. The top of the float feed chamber 8 is inclosed by a cap 22, through an opening 23`in which'a bolt 24 extends, the bolt having a head 25 resting on the top of the cap 2 2, this bolt 24 extendopening in the float 10, and down to the bottom of the float feed chamber 8, where its lower threaded terminal 26 meshes with al thread 27 in the projection 7 having the said float feed chamber 8.

The top of the body 5 is closed by a cap 28, having an outlet 29, commanded by a valve 30, this cap 28 yalso having an open- `ing 31,l in which is secured the upper end of the tube 32, the tube 32 extending down to aposition close to the bottom of the chamber 6 and having a head 34 at its ing through an bottom. This tube 32 has two sets of openings, the openings 35 being disposed above the normal level 36 of the hydro-carbon in ythe opening 6 in the body 5 and the other openings 37 being disposed below this normal level 36 of the hydro-carbon. These openings 35 and 37 serve as valve seats, and"it will be understood that when the valve seats 35 are closed, and the valve seats `37 are open, and air is permitted to low through these valve seats 37 to the hydro-carbon, 1t will serveA to volatilize the hydro-carbon and the mixture will ilow up-V ward and out through the outlet 29. In this way all-the air passing downward within the tube 32 will pass through the hydrocarbon before it passes out of the carbureter body,I and a very rich combustible mixture will be supplied'by the carbureter. When a less rich combustible mixture is desired, the valve seats 37 may be partially closed, and the valve seats 35 may be partially opened, so that air will mix with the combustible mixture formed by the passage of the air fromthe v alve seats 37 through the hydro-carbon as. the combustible mixture ows from the hydro-carbon in the chamber 6 to the outlet .29. As a valve means for opening and closing these v alve seats 35 and 37, I provide a tube 38, disposed 1n the tube 32, the tube 38 also being provided with a head 39 at its bottom, disposed adjacent the head34 of the tube 32. The tube 38 has openings 40, which are adapted to register with the openings 35, and additional openings V41 which are adapted to register 'with the openings 37 but these openings 40 and 41 are so disposed relatively to the valve openings forming the valve seats 35 and 37, .that as the tube 38 is rotated relatively to the tube 32, the valve seats 37 will be opened as the valve seats 35 are being closed, and with the reversed ,rotation of will be opened as the valve seats 37 are being closed. This construction is provided so that in the operation of the carbureter the combined areas ofthe uncovered portions of the v alve 'seats 35 and 37 will be substantially the same. t

Disposed around the tube 32 there are a plurality of perforated plates 42, which exthe tube 38 the valve seats 35.

tend down toward their peripheries 43,

which are in engagement with the sides of the chamber 6 of the body 5. These perforated plates 42 are disposed around the tube 32, between the valve seats 35 and the valve seats 37. There is an additional set of perforated plates 44 which are disposed around the tube 32 above the valve seats 35. The cap 28 has`a projection 45 extending inwardly belowthe outlet 29, this projection45 serving as a baie plate, to insure the more even upward flow of the combustible mixture in the chamber 6 in the body. To the top of the tube 38 is secured acap 46 having inlet openings 48 at its si e, a

lever 47 being secured to this cap 46 by which the cap 46 and the tube 38 may 'be rotated.

Having thus described my invention, I claim as new and desire to secure by Letters Patent l. In a carbureter,"a body having a cham? ber adapted to contain a hydrocarbon, an air inlet 'at one end of the chamber, an outlet for the chamber, a tube disposed vertically in the chamber connected at one end with the inlet and closed at its other end, there being a. valve opening in the tube above the normal level of the h dr'ocarbon, and another valve opening in t e tube below the normal level of the hydrocarbon in the chamber, a rotatable tube disposed within the first tubeand having an opening for registering with the rst opening in the first tube and a second openlng for registering with the second opening. in the first tube for Auncovering one of the openings in the first tube when the other opening in the first tube is closed by the rotation of the second tube, means for rotating one of the tubes relatively to the other, and means or maintaining hydrocarbon in the chamber at the nor-- mal level.

2. In a carbureter, a body having a cham'- ber adapted vto contain a hydrocarbon, an air inlet at the top of the chamber, an outllet for the chamber, a tube disposed vertically in the chamber connected at the top -with the inlet and closed at its lower end adjacent the bottom of the chamber, there being a valve opening in the tube above the normal level of thel hydrocarbon and another valve opening in the tube below the normal level of the hydrocarbon in the chamber, a tube disposed within the first tube and having an opening above the normal level of the hydrocarbon for registering with the rst opening in the first tube and a second opening below the normal levely of the hydrocarbon or registering. with the second opening in the rst tube for uncovering one of the openings in the first' tube when the other opening in the irst tube is closed by the rotation of the second tube,

means for rotating one of the tubes relatively to the other, means for maintaining the hydrocarbon in the chamber at the normal level, and horizontally. perforated i plates spaced apart and disposed in the chamber. and provided with openings, through which -the tubes extend.

In testimony whereof I have signed my name to this specification in the presence of two subscribing Witnesses.

' FRED J. MACEY.

Witnesses:

N. Hf BU'rroN, C. L. SHAFWR 

